Home / 216,993,985.86-299,416,203.27-127,761,126.89

Finding the Fourth Proportional to 216,993,985.86, 299,416,203.27 and 127,761,126.89

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Solution

The fourth proportional to 216,993,985.86, 299,416,203.27 and 127,761,126.89 is: 176,289,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,993,985.86 : 299,416,203.27 = 127,761,126.89 : x
  2. Step 2: Convert to fraction form
    216,993,985.86/299,416,203.27 = 127,761,126.89/x
  3. Step 3: Cross multiply
    216,993,985.86x = 299,416,203.27 × 127,761,126.89
  4. Step 4: Simplify right side
    216,993,985.86x = 38,253,751,538,900,504
  5. Step 5: Solve for x
    x = 38,253,751,538,900,504/216,993,985.86
  6. Step 6: Final answer
    x = 176,289,455.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.